The primary air filter, with a length of 7.76 inches, inside diameter of 3.42 inches, and outside diameter of 6.46 inches, features high-efficiency cellulose media that excels in a wide range of heavy-duty engine applications. Its corrosion-resistant, coated steel liners provide robust support during operation, optimizing airflow. The Pleatloc feature ensures uniform pleat spacing, preventing media bunching and extending service life. This filter adheres to ISO 5011 standards.